All React & Redux challenges are not loading React, ReactDOM, or Redux.
Refused` to load the script '<URL>' because it violates the following
Content Security Policy directive: "script-src 'self' 'unsafe-eval' 'unsafe-inline'
<URL> <URL> <URL> <URL> <URL> <URL> <URL>".
Note that 'script-src-elem' was not explicitly set, so 'script-src' is used as a fallback.
Affects ALL React and Redux challenges:
create-a-simple-jsx-element

Windows 10, Chrome [Version 79.0.3945.117 (Official Build) (64-bit)]
Thank you for reporting this @pjonp. This is related to https://github.com/freeCodeCamp/freeCodeCamp/issues/38044 and we'll fix this ASAP.
Updated the CSP on .dev and .org and tested these challenges in both Firefox and Chrome. Closing this for now, but please let us know if you run into any other issues.